Not yet, though, me and a buddy where talking about axle wrap and which way the pinion rotated, up or down? I was under the impression that mounted under the axle it would be pulled on, do I have this backwards and it will be "compressed" therefore flexing it? I was thinking if it flexed I could get another tube and sleeve it or build another mount that attached higher up and give it a third attaching point. Though, so far just racing it has worked great, went from spinning 2nd, 3rd and chirping 4th sometimes to chirping 2nd and just flat getting it. Though, its hard to see what flex you have from the drivers seat... Though, coming from two sources like Steve and Scott, I would tend to trust your experience. Thanks for the input though, would be embarassing to be pulling and have a bar or two kink in half... . seen that before.